Airtac MID Series Double Rod Mini Cylinder MID20X25
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X25 is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 25mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ20 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MID Series Double Rod Mini Cylinder MID20X25
Delivering 131.9 N of thrust at 0.5 MPa in both directions, this stainless-steel round-body mini cylinder uses a through-rod design to ensure extend and retract forces remain perfectly equal. The twin rod exits both end covers to resist rotation and side load, providing steadier guiding for light jobs without needing an external guide. Its stainless barrel and rod construction offers reliable resistance to mild corrosion and washdown environments.
Because a rod occupies each side, both faces use the rod-side area, yielding a safe working load of roughly 79 N and a vertical lift capacity of about 6.7 kg with a 2:1 margin. This Ø20 bore conforms to the ISO 6432 mounting interface for standard mini brackets, features a 1/8" port, and travels at 30-800 mm/s. The back rod end remains free to trip a switch or carry a stop, while fixed TPU bumper pads decelerate the stroke ends.
Airtac MID Series Double Rod Mini Cylinder MID20X25 Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X25 |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MID Series Double Rod Mini Cylinder MID20X25
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MID Series Double Rod Mini Cylinder MID20X25 Is Used
Symmetric Shuttle Transfer
With 131.9 N of equal force both ways, this cylinder smoothly pushes a light product carrier left and right without stroke asymmetry.
Guided Edge Guiding
The twin through-rod resists rotation during side-loaded guiding tasks, keeping a 6.7 kg web material edge steady on track.
Mechanical Stop Tripping
The rear rod extension independently trips a mechanical limit switch or acts as a hard stop while the front rod performs the main work.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X25 the Right Cylinder?
When sizing this double-acting unit, consider the adjacent bores: stepping down to the MID16X25 yields 86.4 N at 0.5 MPa, while the larger MID25X25 provides 206.1 N. Choose this 131.9 N model when you need symmetric force for a shuttle mechanism or a steady guided push. The twin-rod architecture inherently resists rotation, and the rear rod extension can drive a second load or act as a mechanical stop.
Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without upgrading to the -S variant. For mounting, select LB foot, FA flange, or TC trunnion brackets, as the SDB pivot block is unavailable for double-rod types. Remember that the fixed bumpers only soften stroke ends; they do not hold position. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve for suspended loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MID Series Double Rod Mini Cylinder MID20X25 FAQ
Because it is a double-rod cylinder, the force is equal both ways: 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a maximum of 26.9 kgf at 1.0 MPa. It uses a 1/8" port.
No, this SKU does not include a magnet, so CMSG, DMSG, or EMSG sensors will not function on it. You must select the -S variant to enable sensing. The stainless build resists mild corrosion.
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